1. Which of the following combinations of quantum numbers are not allowed? I. n= 3, l= 3, ml= 0, ms= -1/2 II. n= 4, l= 3, ml= 2, ms= -1/2 III. n= 4, l= 1, ml= -1, ms= +1/2 IV. n= 5, l= -4, ml= 2, ms= +1/2 (A) III, IV (B) II, III (C) I, II (D) I, IV (E) I, III, IV